CN203822832U - Non-equal tooth thickness cylindrical gear shaft - Google Patents
Non-equal tooth thickness cylindrical gear shaft Download PDFInfo
- Publication number
- CN203822832U CN203822832U CN201320821321.9U CN201320821321U CN203822832U CN 203822832 U CN203822832 U CN 203822832U CN 201320821321 U CN201320821321 U CN 201320821321U CN 203822832 U CN203822832 U CN 203822832U
- Authority
- CN
- China
- Prior art keywords
- tooth thickness
- tooth
- gear shaft
- thickness
- transverse tooth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012937 correction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000005489 elastic deformation Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The utility model discloses a non-equal tooth thickness cylindrical gear shaft. A tooth part curve of the cylindrical gear shaft is an involute; the number of teeth Z is equal to 12-30; the modulus m is equal to 2-20; the tooth length L consists of a length L1 of a trapezoid block and a length L2 of a trapezoid block; a tooth thickness of each part is set on the basis of a tooth thickness of a pitch circle; the tooth thickness of a combined part of the large ends of the two trapezoid blocks is S; the tooth thickness of a cantilever end is Sa, and the tooth thickness close to a shaft end is Sb. Due to differentiate design of the tooth thickness, the elastic deformation error caused by mounting of a cantilever of the gear shaft can be counteracted, the meshing quality is improved, and the transmission efficiency is improved; furthermore, the tooth thickness is properly increased in an easily abraded region of the tooth part to balance the abrasion; the service life is prolonged, and the maintenance cost of a user is lowered.
Description
Technical field
The utility model relates to a kind of gear, and specifically, the utility model relates to a kind of design of the transverse tooth thickness Cylinder Gear wheel shaft such as non-.
Background technique
The swirl gear of engineering machinery and the gear of wind-driven generator all adopt gear ring and gear shaft to coordinate transmission, and the gear shaft in this type of big speed ratio driving mechanism is driving link normally, and because of structural limitations, the installation form majority of gear shaft is cantilever beam structure.From force analysis, when gear shaft and gear ring engagement, the torque ratio gear ring that the gear shaft that diameter is less bears is much larger, adds gear shaft and is cantilever beam structure, and gear shaft and gear ring path of action are not total conjugated.Briefly, both do not account for the whole of effective tooth length in tooth length direction meshing zone, and local engagement is the one of the main reasons that causes gear shaft to lose efficacy.
Model utility content
The utility model is mainly for the gear shaft uniform thickness profile of tooth of prior art and the not good problem of gear ring engagement, proposes a kind of transverse tooth thickness Cylinder Gear wheel shaft such as non-, and this gear shaft structure is simple, elastoresistance deformability is strong, meshing quality good.
The utility model is achieved through the following technical solutions technical goal.
The transverse tooth thickness Cylinder Gear wheel shaft such as non-, its improvements are: the tooth portion tooth curve of Cylinder Gear wheel shaft is involute, tooth number Z=12～30, modulus m=2～20, the long L of tooth is by long L
1trapezoid block and long L
2trapezoid block jointly form, the pitch circle place transverse tooth thickness of take is set each transverse tooth thickness as benchmark, two the large end of the trapezoid block place of combining transverse tooth thickness are S, the transverse tooth thickness that is positioned at cantilever end is Sa, by the transverse tooth thickness of axle head, is Sb, S=0.5 π m, Sa=S-△ 1m, Sb=S-△ 2m, L
1=0.1L～0.3L, L
2=0.7L～0.9L.
Transverse tooth thickness correction factor △ 1 and △ 2 in said structure, by module, transmitting torque and tooth are long etc., and composite factor is determined, △ 1=0.002～0.01 generally, △ 2=0.02～0.10.
The utility model compared with prior art, has following good effect:
1, the differential design of transverse tooth thickness, simple and reasonable for structure, make easily;
2, rationally press toothrow thick, can offset gear shaft cantilever the resiliently deformable error producing is installed, improve meshing quality, improve transmission efficiency;
3, in tooth portion region easy to wear, suitably increase transverse tooth thickness, to reach balance abrasion, improve working life.
Accompanying drawing explanation
Fig. 1 is the transverse tooth thickness Cylinder Gear wheel shaft example structure schematic diagram such as the utility model is non-.
Fig. 2 be in Fig. 1 a tooth at pitch circle place transverse tooth thickness structure enlarged diagram.
Embodiment
With reference to the accompanying drawings and in conjunction with the embodiments, further illustrate the utility model below.
The transverse tooth thickness Cylinder Gear wheel shaft such as non-shown in Fig. 1, tooth portion tooth curve is involute, tooth number Z=12～30, modulus m=2～20, the long L of tooth is by long L
1trapezoid block and long L
2trapezoid block jointly form, the pitch circle place transverse tooth thickness of take is set each transverse tooth thickness as benchmark, two the large end of the trapezoid block place of combining transverse tooth thickness are S, the transverse tooth thickness that is positioned at cantilever end is Sa, by the transverse tooth thickness of axle head, is Sb, the concrete size S=0.5 π m of tooth portion, Sa=S-△ 1m, Sb=S-△ 2m, L
1=0.1L～0.3L, L
2=0.7L～0.9L.Transverse tooth thickness correction factor △ 1=0.002～0.01 in above-mentioned formula, △ 2=0.02～0.10.
Below by embodiment, further illustrate the utility model, relevant size is shown in that different embodiments are at the pitch circle place transverse tooth thickness table of comparisons.
Different embodiments are at pitch circle place transverse tooth thickness size table
The non-thickness circular stud wheel axle of making by above-mentioned size, under identical accuracy of manufacturing and equivalent environment, be respectively used to different occasions and do comparative trial, wherein embodiment 1 installs in Independent Suspension wheel hem retarding mechanism, embodiment 2 is arranged in excavator rotary motor reducing gear, and embodiment 3 is arranged in large-tonnage dynamic compaction machinery rotary table.Relevant test result is shown in comparative trial data sheet.
Comparative trial data sheet
From the content of comparative trial data sheet record, the utility model, in area of contact, rotational noise, transmission efficiency and working life, all increases and improves than the comparative example of prior art products, and particularly working life is longer than prior art products.Because the service life of gear that application the utility model is manufactured is long, directly reduce the maintenance frequency of corollary equipment, save maintenance expenses.
Claims (2)
1. the transverse tooth thickness Cylinder Gear wheel shaft such as non-, is characterized in that: the tooth portion tooth curve of Cylinder Gear wheel shaft is involute, tooth number Z=12～30, and modulus m=2～20, the long L of tooth is by long L
1trapezoid block and long L
2trapezoid block jointly form, the pitch circle place transverse tooth thickness of take is set each transverse tooth thickness as benchmark, two the large end of the trapezoid block place of combining transverse tooth thickness are S, the transverse tooth thickness that is positioned at cantilever end is Sa, by the transverse tooth thickness of axle head, is Sb, S=0.5 π m, Sa=S-△ 1m, Sb=S-△ 2m, L
1=0.1L～0.3L, L
2=0.7L～0.9L.
2. the transverse tooth thickness Cylinder Gear wheel shaft such as non-according to claim 1, is characterized in that: described transverse tooth thickness correction factor △ 1=0.002～0.01, △ 2=0.02～0.10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821321.9U CN203822832U (en) | 2013-12-13 | 2013-12-13 | Non-equal tooth thickness cylindrical gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821321.9U CN203822832U (en) | 2013-12-13 | 2013-12-13 | Non-equal tooth thickness cylindrical gear shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822832U true CN203822832U (en) | 2014-09-10 |
Family
ID=51478341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320821321.9U Expired - Lifetime CN203822832U (en) | 2013-12-13 | 2013-12-13 | Non-equal tooth thickness cylindrical gear shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697052A (en) * | 2013-12-13 | 2014-04-02 | 江苏飞船股份有限公司 | Non-uniform tooth thickness cylindrical gear shaft |
-
2013
- 2013-12-13 CN CN201320821321.9U patent/CN203822832U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697052A (en) * | 2013-12-13 | 2014-04-02 | 江苏飞船股份有限公司 | Non-uniform tooth thickness cylindrical gear shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |